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Most living organisms cannot survive at ...

Most living organisms cannot survive at temperatures above 45°c. How are some microbes able to live in habitats with temperature beyond 100°c?

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(a) Microbes possess physiological and biochemical adaptations which allow them to live in habitats with temperature exceeding. 100°C.
(b) There are branched chain lipids in the cell membrane and special resistant enzymes which deal with high temperatures.
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Knowledge Check

  • At a temperature above 35^@C

    A
    rate of photosynthesis will decline earlier than that of respiration
    B
    rate of respiration will decline earlier than that of photosynthesis
    C
    there is no fixed pattern
    D
    both decline simultaneously

  • At a temperature above 35^@C

    A
    rate of photosynthesis will decline earlier than that of respiration
    B
    rate of respiration will decline earlier than that of photosynthesis
    C
    there is no fixed pattern
    D
    both decline simultaneously

  • What amount of heat is needed to raise the temperature of 2xx 10^(-2) kg of nitrogen at room temperature to raise its temperature by 45^(@)C at constant pressure ? (Given molecular mass =28 and R=8.3" J mol"^(-1)K^(-1),C_(p)=7//2 R) :

    A
    `9.33 cal`
    B
    `93.3 J`
    C
    `933.4 J`
    D
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